1. Sorbonne Nouvelle, University, rue de la Sorbonne, Paris, France
2. On-line College, Universitat Oberta de Catalunya, Universidad, Nacional de Educación, Distancia, Spain
3. Ivane Javakhishvili, Tbilisi State University, Georgie
4. Donostia International, Physics Center and Ikerbasque, Paseo Manuel de Lardizabal, San Sebastian, Spain